Regression: Add extra warning message regarding Enhanced Security mode in Microsoft Edge

[GalvinGao]

According #509, the new Enhanced Security mode in Microsoft Edge blocks sites from using WASM. Currently our site just shows the user their browsers are outdated (due to the fact that WebAssembly is not available in the script context), but in fact it is the security feature kicking in.

We should detect window.WebAssembly availability on browsers that are known to be supporting WebAssembly in its core, but are somewhat been disabled, intentionally or unintentionally by users, and results in blocking usage towards it. This gives a better UX and as well reduce misleading information.